Port OpenSSL to sockets
Port OpenSSL to sockets

Summary: Added another line to the rsys sample app's `main.cpp`, which forced me to enable sockets and fix errors in order to get it compile and link.

Reviewed By: usikder

Differential Revision: D30192527

fbshipit-source-id: 10eb9714900ca7f7a48c11b5d8308558ca5e8208

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